davis



(No Model.)

P. H. YOUNG & P. I. DAVIS.

Patented Feb. 3, 1885 n & S Y A W L T. A R R O F L A N G I S E M T. T NU I T A M 0 I W6 WITNESSES JZ/JW ATTORNEYS.

Warren rates FFICEQ a'rnnr FRANCIS HENRY YOUNG AND FRANK I. DAVIS, OF PORT MORRIS, N. J.

AUTOMATIC TIME-SIGNAL FOR RAILWAYS, 8L6.

SPECIFICATION foz'ininfl part of Letters Patent No. 311,706, dated February 3, 1885.

Application died March 12, 18:4. (No modil) T0 all whom. it may concern.-

Be it known that we, FRANCIS H. YOUNG and FRANK I. DAVIS, both of Port Morris, in the county of Morris and State of New Jersey have invented a new and Improved Automatic Time Signal for Railways, 850., of which the following is a full, clear, and exact description.

This signal is designed more especially for use in railway-stations to indicate to the engineers of oncoming trains the time elapsed since the preceding train passed the signal; and our invention consists in the construction and arrangement of parts, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of our new and improved automatic ti Inc-signal applied as a railway-signal, the movable indicator being shown in the position it will occupy twelve minutes after a train has passed. Fig. 2 is a sectional elevation of the same, taken on the line m m of Fig. 1, and Fig. 3 is a transverse sectional elevation taken on the line 1 y of Fig. 2.

A represents the stationary indicator, which in this instance is an ordinary clock-dial facing along the track and marked off into hours and minutes, and B represents the movable indicator or pointer attached to the spindle O, and arranged to move in front of the stationary indicator A like the hour-hand to a clock. The stationary indicatorA is attached to the front of the inclosure A, in which is placed the clock mechanism D, and the other operative parts of the signal. The spindle O is made hollow to receive the horizontal nonmagnetic arm E, attached to the horseshoemagnet F, on which arm Ethe spindle is placed loosely, so as to be adapted to revolve freely thereon and be moved longitudinally and the spindle O is provided with the stoparm G, which is arranged to come against the stationary stop H, which latter is arranged to stop the pointer B, through the medium of arm G, at twelve or some other certain point on the dial or stationary indicator A. At its rear end the hollow spindle G is provided with the metallic plate I, which stands directly in front of the poles of the magnet F, and in front of the plate I is secured to the spindle C an end of the coiled spring J, the other end of which is made fast to the inclosure A by the keeper K, the spring being so arranged that a tension will be put upon it by the turning of the spindle G by the clock-work D. The magnet F is made fast to the spindle L of the clockwork D, and turns continually with it when the signal is fitted for use.

M is a pendent arm pivoted on the rod N below the spindle O and arm E. The upper end of this arm M is adapted to act between and against the flanges act on the hollow spindle G, and its lower end stands back of and in line with the cross-head O, secured in a vertical position by the set-screw b to therod P, which latter extends from the signal to one of the rails of the railroad, where it is bent upward to form the arm P, against which the locomotive strikes, so as to cause the rod P and cross-head O to be turned by the train in passing the signal. A coiled spring, Q, is placed upon the rod P, and one end of this spring is made fast to the standard A of the frame, while the other end of the said spring is made fast to the cross-head O, which is fast upon the rod P, so that as the rod P is turned by a passing train the movement of the crosshead 0 with the rod P will put a tension upon the spring Q, which when the train shall have passed the arm P will react and cause the said arm P and cross-head O to assume their original vertical positions.

The action of the signal is as follows: A train of cars having just passed the signal, the parts of the signal will stand in the positions shown in Fig. 2, with the indicator B pointing to XII, the arm P of rod P standing in a vertical position, as seen in Fig. 3, and the plate I of the hollow spindle O drawn by the force of the magnet F back into contact with the poles thereof. The power of the magnet thus connects the spindle O with the clock mechanism D, which acts to turn the magnet, hollow spindle, and indicator B with a regular speed, the speed. being indicated by the graduation upon the stationary indicator A. In this manner the signal will run on until the next passing train strikes the arm P of the rod P, which will turn the rod P and bring one end of the cross-head 0 against the lower end of the pendent arm M, swing it backward, which will cause its upper end to slide the hollow spindle O outward upon the' arm E and break the connection of the plate I of the spindle G with the poles of the magnet F, which will permit the spring Jto turn the spindle and pointer B back upon the arm E until the stoparm G strikes the stationary stop H, when the pointer B will stand at XII again. The train now having passed'the signal, the arm P and cross-head 0 will assume their original vertical positions, leaving the pendent arm M free to swing back by gravity to its original vertical position, which will move the spindle 0 back on the arm E, bringing the plate I in contact with the poles of the magnet, which will act to connect the spindle O and pointer B again with the clockwork D, when they will turn as before, causing the pointer B to indicate on the dial A to the engineer of the next oncoming train the time since the preceding train passed the signal.

Instead of using a permanent magnet F, an

electro-magnet may be used,suitable means being provided for causing the passing train to close or break the circuit, in which case the arm M, rod P P, and crosshead 0 will be dispensed with, and weights might be used in place of the springs J and Q, if desired, and not depart from the spirit of our invention.

Having thus described our invention. we claim as new and desire to secure by Letters Patent 1. In a signal, a clock mechanism, and a magnet rotated thereby, in combination with a pointer-carrying spindle rotated by the magnet, and means for returning the pointer to a fixed point when disconnected from the magnet, and mechanism,substantially as described, for breaking and automatically making "connection between the magnet and spindle, as set forth. 1 v v 2. The signal herein shown and described, consisting of a longitudinally-movable spindle, O, and .suitablebearings therefor, pointer B, indicator A," clock mechanism D, intermediate magnet-connection, F, spring J, for re turning the pointer to a fixed point, pivoted pendent bar M, rod P P, spring Q, and crosshead 0, for causing the bar M to move the spindle 0 along its bearings, substantially as set forth. v

3. The signal herein described, consistingof the hollow spindle 0, provided with collars a a, and pointer B, indicator A, clock mech* anism D, and magnet F, secured thereto, arm

E, secured to the magnet and projecting into spindle 0, spring J, pivoted pendent bar M, the upper end of which rests between collars a a, springoperated rod P P, and crosshead O, for operating the bar M, substantially as set forth. I

FRANCIS HENRY YOUNG. FRANK l. DAVIS.

Witnesses:

PATRICK H. REYNOLDS, WILLIAM S. BAGSHAW. 

